user
Tell me how would you respond to the following request.
Describe coral reefs in three sentences.

assistant
Coral reefs are vibrant underwater ecosystems formed from the skeletons of polyps. They are incredibly diverse, providing a home for a multitude of sea creatures such as fish, crustaceans, mollusks, and sea turtles. Coral reefs also provide protection for the mainland from strong waves, storms, and floods.